Home / 25,811.28-38,719.92-11,021.88

Finding the Fourth Proportional to 25,811.28, 38,719.92 and 11,021.88

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Solution

The fourth proportional to 25,811.28, 38,719.92 and 11,021.88 is: 16,534.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,811.28 : 38,719.92 = 11,021.88 : x
  2. Step 2: Convert to fraction form
    25,811.28/38,719.92 = 11,021.88/x
  3. Step 3: Cross multiply
    25,811.28x = 38,719.92 × 11,021.88
  4. Step 4: Simplify right side
    25,811.28x = 426,766,311.85
  5. Step 5: Solve for x
    x = 426,766,311.85/25,811.28
  6. Step 6: Final answer
    x = 16,534.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.